CN103718583B - The system and method that safety data transmission is provided via frequency spectrum segment - Google Patents

The system and method that safety data transmission is provided via frequency spectrum segment Download PDF

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Publication number
CN103718583B
CN103718583B CN201280023598.5A CN201280023598A CN103718583B CN 103718583 B CN103718583 B CN 103718583B CN 201280023598 A CN201280023598 A CN 201280023598A CN 103718583 B CN103718583 B CN 103718583B
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China
Prior art keywords
frequency spectrum
subflow
spectrum segment
multiple
data
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CN201280023598.5A
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Chinese (zh)
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CN103718583A (en
Inventor
V·D·普罗希特
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阿尔卡特朗讯
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Priority to US201161486489P priority Critical
Priority to US201161486597P priority
Priority to US61/486,597 priority
Priority to US61/486,489 priority
Priority to US201161523678P priority
Priority to US61/523,678 priority
Priority to US13/449,170 priority patent/US9496982B2/en
Priority to US13/449,170 priority
Priority to US13/471,504 priority
Priority to US13/471,504 priority patent/US9030953B2/en
Application filed by 阿尔卡特朗讯 filed Critical 阿尔卡特朗讯
Priority to PCT/US2012/038050 priority patent/WO2012158747A1/en
Publication of CN103718583A publication Critical patent/CN103718583A/en
Application granted granted Critical
Publication of CN103718583B publication Critical patent/CN103718583B/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/02Arrangements for detecting or preventing errors in the information received by diversity reception
    • H04L1/04Arrangements for detecting or preventing errors in the information received by diversity reception using frequency diversity
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/08Arrangements for detecting or preventing errors in the information received by repeating transmission, e.g. Verdan system
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/22Arrangements for detecting or preventing errors in the information received using redundant apparatus to increase reliability
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0037Inter-user or inter-terminal allocation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/02Channels characterised by the type of signal
    • H04L5/06Channels characterised by the type of signal the signals being represented by different frequencies
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00Cryptographic mechanisms or cryptographic arrangements for secret or secure communication
    • H04L9/06Cryptographic mechanisms or cryptographic arrangements for secret or secure communication the encryption apparatus using shift registers or memories for block-wise or stream coding, e.g. DES systems or RC4; Hash functions; Pseudorandom sequence generators
    • H04L9/065Encryption by serially and continuously modifying data stream elements, e.g. stream cipher systems, RC4, SEAL or A5/3
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00Cryptographic mechanisms or cryptographic arrangements for secret or secure communication
    • H04L9/08Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H04L9/0891Revocation or update of secret information, e.g. encryption key update or rekeying
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W12/00Security arrangements, e.g. access security or fraud detection; Authentication, e.g. verifying user identity or authorisation; Protecting privacy or anonymity ; Protecting confidentiality; Key management; Integrity; Mobile application security; Using identity modules; Secure pairing of devices; Context aware security; Lawful interception
    • H04W12/04Key management, e.g. by generic bootstrapping architecture [GBA]
    • H04W12/0401Key generation or derivation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/0001Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0009Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0001Arrangements for dividing the transmission path
    • H04L5/0003Two-dimensional division
    • H04L5/0005Time-frequency
    • H04L5/0007Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/001Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00Network architectures or network communication protocols for network security
    • H04L63/06Network architectures or network communication protocols for network security for supporting key management in a packet data network
    • H04L63/068Network architectures or network communication protocols for network security for supporting key management in a packet data network using time-dependent keys, e.g. periodically changing keys

Abstract

System, method and apparatus for safely transmitting data stream, multiple subflows are divided into by data flow;Each subflow is associated with corresponding frequency spectrum segment;Encrypt at least some in the subflow;And modulate each subflow to provide the corresponding modulated signal for being applied to transmit via corresponding frequency spectrum segment.

Description

The system and method that safety data transmission is provided via frequency spectrum segment

Apply for related cross reference

The application is the U.S. Patent application of entitled " virtual aggregation of segment wireless frequency spectrum " submitted on March 4th, 2011 No.13/040,458(Attorney docket 809125)Part continue, this application is fully incorporated by reference herein.The application Be also submit on April 17th, 2012 it is entitled " via frequency spectrum segment provide can resume data transmission system and method " the U.S. Patent application No.13/499,170(Attorney docket 809615)Part continue, and this application is to carry on March 4th, 2011 The U.S. Patent application No.13/040,458 of entitled " virtual aggregation of segment wireless frequency spectrum " handed over(Attorney docket 809125) Part continue, these applications are fully incorporated by reference herein.

This application claims enjoy submit on May 16th, 2011 it is entitled " using wireless signal polymerize enhancing security " U.S. Provisional Patent Application No.61/486,489(Attorney docket 809662L), entitled " using of submitting on May 16th, 2011 The U.S. provisional patent application cases number 61/486,597 of effective fault recovery support of wireless signal polymerization "(Attorney docket 809663L)And the U.S. provisional patent application cases number of entitled " non-intersect repetitive propagation frequency spectrum " that August in 2011 is submitted on the 15th 61/523,678(Attorney docket 810305L)Priority, these applications are fully incorporated by reference herein.

Technical field

The present invention relates generally to communication network, and more specifically but be not exclusively related to it is point-to-point and point pair Multi-point communication network and back haul link.

Background technology

Traditional wireless system assumes can be using the bandwidth continuous frequency spectrum block proportional to the data volume that will be transmitted.Therefore Transmission system is to be directed to the worst bandwidth demand with typical case or average use situation and design, and in some cases, Need considerably less bandwidth(Namely frequency spectrum).

In the occasion of satellite communication system and other Point-to-Point Communication Systems, distributing to the usable spectrum of user may become Into fragmentation in time, this causes have untapped piece between the frequency spectrum blocks of distribution.When untapped frequency spectrum blocks are too small When, it is necessary to redistribute frequency spectrum between users or distribute " movement " to new frequency spectrum from existing frequency spectrum by user and distribute, Single spectral regions are can be merged into be not used frequency spectrum blocks.Unfortunately, this redistribute is very destructive.

The content of the invention

The system of the present invention, method and apparatus are directed to the various defects of prior art, to improve security, for dry Bandwidth usage in the elasticity and data transmission system disturbed.Especially, will by the way that data flow is divided into multiple sub-data flows Each subflow is associated with corresponding frequency spectrum segment, encrypts at least some subflows, and each subflow of modulation is applied to providing The corresponding modulated signal transmitted via corresponding frequency spectrum segment, various embodiments are provided for safety-oriented data transfer stream System, method and/or equipment.

In various embodiments, the subflow each encrypted is associated with corresponding encryption key.In various embodiments, At least some subflows encrypted are associated with shared encryption key.In various embodiments, the encryption for encrypting subflow is close Key is changed in each session.In various embodiments, the encryption includes the index value according to generation from encryption key table Select encryption key.

Brief description of the drawings

By be considered in conjunction with the accompanying it is described further below can easily understand that the teachings of the present invention, wherein:

Fig. 1 describes the block diagram of the communication system according to one embodiment;

Fig. 2 describes the schematic table for contributing to the frequency spectrum for understanding the embodiment of the present invention to distribute;

Fig. 3 describes the high-level block diagram of the general-purpose calculating appts suitable for multiple embodiments;

Fig. 4 to Fig. 6 describes the flow chart of the method according to multiple embodiments;

Fig. 7 to Fig. 9 describes the block diagram of the communication system according to multiple embodiments;

Figure 10 describes the high-level block diagram of wafer breaker/demultiplexer suitable for multiple embodiments;

Figure 11 describes the flow chart of the method according to one embodiment;

Figure 12 describes the high-level block diagram for the system for having benefited from multiple embodiments;

Figure 13 describes the flow chart of the method according to one embodiment;

Figure 14 A and Figure 14 B describe the schematic table for contributing to the frequency spectrum for understanding multiple embodiments to distribute;And

Figure 15 describes the flow chart of the method according to one embodiment.

In order to make it easy to understand, as far as possible using identical reference to identify the similar elements that accompanying drawing is shared.

Embodiment

Main the present invention will be described in the range of satellite communication system.However, those skilled in the art and herein by Personnel to teaching will be recognized that it is suitable for having benefited from any system of flexible spectrum distribution, such as microwave communication system System, wireless communication system etc..

One embodiment provides a kind of effective and general technology to gather multiple fault blocks of wireless frequency spectrum A continuous dummy block is synthesized to cause the bandwidth of accumulation to be no better than the summation for the bandwidth for being constituted block.Piece fault block is alternatively The block that the wireless frequency spectrum administrative department of the block, area or the country that are possessed by protection block, other parts is forbidden etc. Frequency spectrum blocks are separated from each other.

Fig. 1 describes the block diagram for the communication system for having benefited from multiple embodiments.Fig. 1 communication system 100 includes point pair Point link, the point-to-point link include virtual spectrum aggregating device transmitter 110, power amplifier 120, satellite uplink 130, Satellite 140, satellite downlink 150, virtual spectrum aggregating device receiver 160 and alternatively control module 170.Will point The data transmitted on a link can be provided, such as transport stream of 188 bytes as packet D stream(TS)Data Bag, Ethernet data bag of 64-1500 bytes etc..The packet structure specified, the data transmitted in packet structure etc. Etc. being readily adaptable to multiple embodiments described here.

Input traffic D is received by virtual spectrum aggregating transmitter 110, is handled here by wafer breaker/demultiplexer 111 To provide N number of subflow(D0…DN-1), wherein N, which corresponds to, is designated S0、S1Etc. until SN-1Frequency spectrum segment number.

As shown in fig. 1, N=3 cause wafer breaker/demultiplexer 111 by input traffic D bursts, DeMux and/or It is divided into and is designated D0、D1And D2Three subflows(Schematically).

Subflow D0、D1And D2Each be coupled to corresponding modulator 112(Namely modulator 1120、1121With 1122). Modulator 1120、1121With 1122Each modulate his corresponding subflow D0、D1And D2Will be by corresponding frequency spectrum segment with offer S0、S1And S2The corresponding modulated signal carried.

Modulator 112 can be included with identical characteristic or with different qualities(Such as type of waveform characteristic, constellation Figure, forward error correction(FEC)Set etc.)Modulator.Can be according to the particular type of business(Such as Streaming Media, non-Streaming Media Etc.), corresponding frequency spectrum segment SiAssociated particular channel and/or other criterions, to optimize each modulator.

Typically, the data volume distributed by wafer breaker/demultiplexer 111 to any subflow Di is proportional to correspondence frequency spectrum piece Disconnected Si data-carrying capacity.In various embodiments, each of subflow Di includes identical data volume, and in other implementations Various subflow Di can include different amounts of data in example.

As shown in figure 1, the first modulator 1120There is provided with the first frequency spectrum segment S0Associated 6MHz signals;Second adjusts Device 112 processed1There is provided with the second frequency spectrum segment S1Associated 1MHz signals;And the 3rd modulator 1122There is provided with the 3rd Frequency spectrum segment S2Associated 1MHz signals.

Frequency multiplex device(Namely signal combiner)113 are operated to combine modulated signal to produce combination Modulated signal Sc, modulated signal Sc is modulated onto in carrier signal by upconverter 114, brewed to provide Carrier signal C.It should be noted that multiple frequency multiplex devices/signal combiner 113 can be used for multiplexing will The modulated signal for the respective sets transmitted via shared transponder, microwave link, wireless channel etc..

In the embodiment in figure 1, the frequency spectrum associated with modulated carrier signal C logically or is virtually divided into Multiple frequency spectrum segments for transmitting modulated data subflow.Frequency spectrum segment allocation table or other data structures are used for which to be paid close attention to Individual frequency spectrum segment is defined, which frequency spectrum segment is being used(And used by which substream of data)And which frequency spectrum piece Break available record.Typically, each transponder/transmission channel can be divided into multiple frequency spectrum segments or region.These Each in frequency spectrum segment or region can be assigned to the substream of data specified.Can be according to peculiar or shared modulation Technology modulates each substream of data.

As shown in figure 1, using single satellite repeater, and therefore before up-conversion and via single satellite signal transit All modulated signals are combined by frequency multiplex device 113.In various embodiments, can be in one or more satellites Use multiple transponders.In these embodiments, only those need via in satellite share transponder and be transmitted it is brewed Signal is combined and then together by frequency conversion.In various embodiments, modulation waveform is independently transmitted.

Modulated carrier signal C produced by upconverter 114 is amplified by power amplifier 120 and via satellite uplink Link 130 and transmit to satellite 140.Satellite 140 will include brewed subflow D0、D1And D2Modulated carrier signal transmission To satellite downlink 150, signal is propagated to virtual spectrum aggregating device receiver 160 by satellite downlink 150.

Virtual spectrum aggregating device receiver 160 includes believing the segment of combined spectral from the carrier signal C ' received Number Sc ' carries out the low-converter of down coversion(165), and operate with by frequency spectrum segment S0’、S1' and S2' with combined spectral piece The frequency demultiplexer that break signal Sc is separated(164).

Each frequency spectrum segment S0’、S1' and S2' coupled to the demodulator of separation(Namely demodulator 1620、1621With 1622), Each demodulator 1620、1621With 1622Demodulate the disconnected S of his respective tones spectral slice0’、S1' and S2' corresponding demodulate subflow to provide D0’、D1' and D2’。

Combiner 161 handles demodulated subflow D0’、D1' and D2' launched with producing to represent by virtual spectrum aggregating device The output stream D ' for the input traffic D that the beginning of device 110 treats.It should be noted that each demodulator 162 is with corresponding The compatible mode of modulator 112 work.

Alternatively, virtual spectrum aggregating device receiver 160 includes buffer 1660、1661With 1662, buffer offer pair In the various elastic buffer functions for having demodulated subflow with allow to combination subflow before avoid by associated with various subflows Different propagation delays caused by alignment error.The buffer of 166 marks is described for being arranged in demodulator(162)With combining Device(161)Between function element.In various embodiments, buffer 166 or their functional equivalent device are included in group In clutch 161.For example, combiner 161 can include single buffer, the single buffer is from all demodulators(162)Receive Data and then rearrange data using be used as output stream D '.Other information in packet ID and/or subflow can be used for This purpose.

Optional control module 170 and component management system(EMS), NMS(NMS)And/or suitable for management Perform other management herein with reference to the network element of the function described by Fig. 1 or control system is interacted.Control module 170 can be used for configuring each modulator, demodulator and/or other circuits in the element that this reference picture 1 is described.This Outside, control module 170 can be remotely located relative to its controlled element, be positioned close to transmission circuit, be positioned close to Acceptor circuit etc..Control module 170 can be implemented as being programmed to execute all specific control work(as the described herein The all-purpose computer of energy.In one embodiment, control module 170 is applicable respectively via the first control signal TXCONF and second Configurations and/or behaviour of the control signal RXCONF to virtual spectrum aggregating device transmitter 110 and virtual spectrum aggregating device receiver 160 Make.In this embodiment, multiple control signal can be provided in the case of multiple transmitters and receiver.

Fig. 2 describes the schematic table for contributing to the frequency spectrum for understanding the embodiment of the present invention to distribute.Specifically, Fig. 2 schemas The distribution of 36MHz frequency spectrums is described, wherein the Part I 210 of frequency spectrum is assigned in the first user, it is schematically single 10MHz Block;The Part II 220 of frequency spectrum is assigned in second user, is schematically single 8MHz blocks;Frequency spectrum is assigned in 3rd user Part III 230, be schematically single 10MHz blocks;And fourth user point is by the Part IV 240 with frequency spectrum, signal Property is to include the first 1MHz blocks 2401, the 2nd 1MHz blocks 2402With 6MHz blocks 2403Three discontinuous frequency spectrum blocks.

In the context of each embodiment discussed herein, the data flow associated with fourth user is divided into single Two different 1MHz frequency spectrum segments in 6MHz frequency spectrum segments, are each substantially located in identical mode described in reference picture 1 Reason.

Fig. 3 describes the high-level block diagram of the general-purpose calculating appts 300 suitable for each said embodiment.Example Such as, the computing device 300 shown in Fig. 3, which can be used for performing, is applied to implement that each transmitter described herein is handled into work( Energy, receiver processing function and/or the program for managing processing function.

As shown in figure 3, computing device 300 includes input/output(I/O)Circuit 310, processor 320 and memory 330. Processor 320 is coupled to each of I/O circuits 310 and memory 330.

Memory 330 is described as including buffer 332, transmitter(TX)Program 334, receiver(RX)Program 336 and/ Or management program 338.The specific program stored in memory 330 depends on the function of being implemented using computing device 330.

In one embodiment, implemented using the computing device of such as Fig. 3 computing device 300 above with reference to Fig. 1 institutes Wafer breaker/the demultiplexer 111 stated.Specifically, processor 320 performs each above with reference to described in wafer breaker/demultiplexer 111 Plant function.In this embodiment, I/O circuits 310 are from data source(It is not shown)Receive input data and provided to demodulator 112 N number of subflow(D0…DN-1).

In one embodiment, implemented using the computing device of such as Fig. 3 computing device 300 above with reference to Fig. 1 institutes The combiner 161 stated.Specifically, processor 320 performs each function above with reference to described in combiner 161.In the embodiment In, I/O circuits 310 are from demodulator 162(Alternatively via buffer 166)Receive demodulated subflow D0’、D1' and D2', and The output stream D ' for representing the input traffic D crossed by the virtual initial treatment of spectrum aggregating device transmitter 110 is provided.

In one embodiment, implemented using the computing device of such as Fig. 3 computing device 300 above with reference to Fig. 1 institutes The optional control module 170 stated.

Although primary computer device is illustrated and is described as the particular type with part and setting, it should manage The part of solution, any other suitable type and/or setting can be used for computing device 300.Can be with suitable for implementing Any mode of each function described here implements computing device 300.

It should be understood that computer 300 shown in Fig. 3 is there is provided suitable for the said function element of implementation and/or herein The common architecture and feature of a part for the function element.It is shown here go out can be with software with described function And/or hardware is implemented, such as using all-purpose computer, one or more application specific integrated circuits(ASIC), and/or any other is hard Part equality unit.

It is contemplated that said some steps as software approach for example can cooperate with work as with processor Make in hardware to implement to perform the circuit of each method and step.The a part of of function/element described herein can conduct Computer program product is implemented, wherein when as handled by computer, computer instruction adapt to perform the operation of computer so that It must call or otherwise provide methods and/or techniques described herein.For calling the instruction of the inventive method can To be stored in fixed or removable medium, transmitted via the data flow in broadcast or other signal bearing mediums, via Tangible medium is transmitted and/or is stored in the memory in the computer installation according to command operating.

Fig. 4 describes the flow chart of the method according to one embodiment.Specifically, Fig. 4 method 400 is applied to such as join Handle the data flow D being used for as described above according to Fig. 1.

At step 410, including from one or more users is such as received by virtual spectrum aggregating device transmitter 110 The data flow of data.

At step 420, the data flow received is divided into N number of subflow, wherein each subflow and corresponding frequency spectrum piece It is disconnected associated.With reference to step 425, individually or it can be combined and be performed using any one of following criterion by data flow It is divided into subflow:According to user, according to segment, for data type, fixed dimension is variable-sized, the group of each division methods Close and/or other criterions.

At step 430, each subflow is modulated using corresponding modulator.With reference to square frame 435, data type can be directed to Optimize, optimize demodulator for channel conditions, their shared denominators, they have various/different qualities etc..

At optional step 440, when identical transponder or transmission channel will be used one or more modulated to transmit During system stream, these brewed subflows are combined.

At step 450, up-conversion and brewed subflow is transmitted.With reference to square frame 455, up-conversion/transmission process can With under the occasion of satellite communication system, microwave telecommunication system, wireless communication system/channel or other media.

Fig. 5 describes the flow chart of the method according to one embodiment.Specifically, Fig. 5 method 500 is applied to processing one Individual or multiple subflows received, such as reference picture 1 are as described above.

At step 510, receive and the one or more brewed subflows of down coversion., can be via with reference to square frame 515 Satellite communication system, wireless communication system, wireless communication system/channel or other media receive one or more modulated systems Stream.

At step 520, any subflow combined before separation at transmitter is to provide single subflow, and in step At rapid 530, each single subflow is demodulated using corresponding suitable demodulator.

At step 540, optionally postpone one or more brewed subflows to allow to temporally aligned obtain The modulated data arrived.

At step 550, the data flow that brewed and selectivity delay subflow is obtained to provide is combined, is such as represented The input traffic D crossed by virtual spectrum aggregating device transmitter initial treatment data flow D '.

Fig. 6 describes the flow chart of the method according to one embodiment.Specifically, Fig. 6 method 600 is applied to each reality Apply example and configure each transmitter and receiver parameters.

At step 610, the request for transmitting user data is received.With reference to square frame 615, request can provide specific Bandwidth, specific data rate, specific data type, certain modulation type and/or description are associated with user data transmission request Bandwidth and/or demand for services other information.

At step 620, for making determination suitable for the frequency spectrum distribution for meeting user data transmission request.

, whether please suitable for meeting user data transmission for any specific frequency spectrum related to criterion at step 630 Ask and make determination.With reference to square frame 635, this frequency spectrum related to criterion can include minimum bandwidth block size, for continuous band The demand of wide block and/or other criterions.

At step 640, available frequency spectrum segment is identified., can be relative to allocation table, management system with reference to step 645 And/or the identification to usable spectrum segment is made in other sources of this information.In one embodiment, allocation table define with The frequency spectrum distribution that each user serviced by satellite communication system is associated;That is, the bandwidth allocation of each user, support band Wide transponder, the satellite for supporting transponder etc..In addition, for each satellite each transponder with size and spectral regions Form define available frequency spectrum segment.

At step 650, distribute available frequency spectrum segment to meet user data transmission request.With reference to square frame 655, it can use Frequency spectrum segment can be assigned as can use, for user optimization, optimize for carrier wave, optimize to reduce frequency spectrum number of slices, it is excellent Change to provide elasticity or redundancy, and/or based on the optimization of other criterions.

At step 660, emitter/receiver system is configured to provide the correct number and type of modulator/demodulator, Times to support user data transmission to ask and suitable for sending the user of request and/or the frequency spectrum segment distribution of other users What changes.That is, based on optimization and/or other criterions, suitably change multiple users frequency spectrum segment distribute with optimize with Be conducive to specific user, ISP etc..

At step 670, billing data, service agreement etc. are suitably updated.At step 680, renewal system configuration, Articles of law and/or other management data.

In various embodiments, will on different satellite repeaters and/or different satellite available frequency spectrum segment polymerization with Form virtual continuous blocks.In other embodiments, the whole bandwidth of multiple transponders is used to support high number on satellite link According to speed pipeline(Such as OC-3/12c).

Fig. 7 to Fig. 9 describes the block diagram of the communication system according to each embodiment.Fig. 7 is to communication system described in Fig. 9 Each of interior all parts above with reference to corresponding component identical mode in the communication system described in Fig. 1 substantially to grasp Make.For example, in Fig. 7 to Fig. 9 each embodiment, input traffic D is received by virtual spectrum aggregating device transmitter 110, by Wafer breaker/demultiplexer x11 handles the input traffic to provide N number of subflow(D0…DN-1), wherein by corresponding modulator x12 Modulate each of N number of subflow.Other different and similarities between each figure are will be described below.

Fig. 7 describes single transponder embodiment, wherein single transponder, which be used to forward, is designated stream A, B, C and D Each of multiple data flows.Fig. 7 A describe the uplink portion of system, and Fig. 7 B describe the downlink portion of system Point.

Reference picture 7A, by corresponding modulator 712 modulated data stream A, B and C to produce corresponding brewed stream, accordingly Brewed stream is then by the first signal combiner 1131It is combined to provide and has combined modulated signal ABC.

By the processing data stream D of wafer breaker/demultiplexer 711 to provide N number of subflow(D0…DN-1), this N number of subflow then by Corresponding modulator 712(Namely modulator 7120、7121With 7122)Modulation will be by the disconnected S of respective tones spectral slice to provide0、S1And S2 The corresponding modulated signal of institute's carrier wave.By secondary signal combiner 7132Corresponding modulated signal is combined, to provide group The modulated signal DDD of conjunction, by the 3rd signal combiner 7133DDD is combined with modulated signal ABC.By upconverter 714 The obtained modulated signal of combination is subjected to frequency conversion, to produce carrier signal C, carrier signal C is by power amplifier 720 Amplify and transmitted via satellite uplink 730 towards satellite 740.

Reference picture 7B, satellite 740 transmits the modulated carrier signal including brewed stream A to D to satellite downlink 750, signal is propagated to low-converter 765 by satellite downlink 750.By frequency demultiplexer 1643Handle the letter of down coversion Number, frequency demultiplexer 1643Operated using by Signal separator as ABC and DDD signal components.

ABC signals component is by second frequency demultiplexer 7641Separation is to recover modulated signal and by corresponding demodulator 752 demodulation.

DDD signals component is by the 3rd frequency demultiplexer 7642Separation to recover modulated signal, the modulated signal by Corresponding demodulator 752 is demodulated.

Handled by combiner 761 and demodulated subflow D0’、D1' and D2' represent input traffic D output data to produce Flow D '.It should be noted that each demodulator 162 is operated in the way of corresponding modulator 112 is compatible.

Fig. 8 describes double transponder embodiments, wherein the first transponder is used to transmit many numbers for being designated stream A, B and C According to two of each and three subflow associated with data flow D of stream, and the second transponder for transmission be designated E and Each and threeth subflow associated with data flow D of F multiple data flows.Fig. 8 A describe the up-link portion of system Point, and Fig. 8 B describe the downlink portion of system.

Reference picture 8A, respectively by corresponding modulator 812 modulated data stream A, B, C, E and F, to produce corresponding brewed number According to stream.

By the corresponding modulated data stream E and F of modulator 812 to produce corresponding modulated signal.

By the processing data stream D of wafer breaker/demultiplexer 711 to provide N number of subflow(D0…DN-1), this N number of subflow then by Corresponding modulator 712(Namely modulator 7120、7121With 7122)Modulation will be by the disconnected S of respective tones spectral slice to provide0、S1And S2Institute The corresponding modulated signal of carrying.

By the first signal combiner 8131Combine and combined with data flow A, B and C modulated signal being associated with providing Modulated signal ABC.

By secondary signal combiner 8132Combination and subflow D0And D1Associated modulated signal, to provide what is combined Modulated signal D12

By the first signal combiner 8131With secondary signal combiner 8132Signal combiner produce combined it is brewed Signal is then by the 3rd signal combiner 8133Combine and by the first upconverter 8141Frequency conversion is carried out to produce the first load Ripple signal C1.

With subflow D3And the associated modulated signals of stream E and F are by the 4th signal combiner 8133Combine and by second Upconverter 8142Frequency conversion is carried out to produce the second carrier signal C2.

C1 and C2 carrier signals are by the 4th signal combiner 8134Combination, is amplified by power amplifier 820, and via defending The respective transponders of star up-link 830(A and B)Transmitted towards satellite 840.

Reference picture 8B, satellite 840 is via respective transponders(A and B)To include two of brewed stream A to F it is brewed Carrier signal transmission is to satellite downlink 850, the transmitting signal of satellite downlink 850 to low-converter 865.Demultiplexed by frequency With device 8644It is two carrier signal by the Signal separator of down coversion.Use each demultiplexer of 864 marks, 862 marks The demodulator and combiner 861 of knowledge handle two carrier signals, to produce each output for representing input traffic A to F Data flow A ' to F '.

Fig. 9 describes double satellite embodiments, one of satellite(9401)A, B and C many numbers are designated for transmitting According to stream, and two of three subflow associated with data flow D.Second satellite(9402)The many of E and F are designated for transmitting Individual data flow, and threeth subflow associated with data flow D.Fig. 9 A describe the uplink portion of system, and Fig. 9 B are retouched The downlink portion of system is stated.

Reference picture 9A, with above with reference to substantially the same mode processing data stream A, B, C, E and F described in Fig. 8 A, In addition to two carrier signals are not combined for the respective transponders transmission via single satellite.On the contrary, Fig. 9 show by The power amplifier of separation(9201With 9202)Amplify and use up-link 930 respectively1With 9302Transmit to satellite 9401With 9402Two carrier signals.

Reference picture 9B, two satellites 940 transmitted via corresponding downlink 950 include brewed stream A to F they are corresponding Modulated carrier signal, corresponding modulated carrier signal will then be sent to corresponding low-converter 965.Use demultiplexer (964), demodulator(962)And combiner(961)The carrier signal of two down coversions of processing, input data is represented to produce Flow A to F output stream A ' to F '.

Figure 10 describes the high-level block diagram of wafer breaker/demultiplexer suitable for each embodiment described herein.Tool Body, Figure 10 wafer breaker/demultiplexer 1000, which includes packet encapsulation device 1010, includes the master scheduling of buffer storage 1022 Device 1020 and multiple from scheduler 1030 including buffer storage 1032.

Packet encapsulation device 1010 is operated using the packet encapsulation that will be received from data flow D as with predetermined or standardization The packet structure of form.When multiple encapsulated data packet forms can be used, it is important that in the downlink side of system Combiner is configured as encapsulation format, number of combinations according to used in wafer breaker/demultiplexer in the uplink side of system According to bag.

In one embodiment, encapsulated data packet includes 188 byte data bags, with 185 byte payload parts and 3 Byte header part.Packet encapsulation device 1010 is extracted the sequence of 185 byte sections from original data stream D, and encapsulates every The part of individual extraction is to form encapsulated data packet(EP).The head portion of each encapsulated data packet is stored and payload data Associated user's sequence number, with the sequence for 185 byte sections for allowing to be reconstructed data flow by combiner, such as above joins According to described in each accompanying drawing.

In one embodiment, user's sequence number includes 14 digital bits, and 14 digital bit is continuously incremented by and is used for The encapsulated data packet that flag data encapsulation device 1010 is provided.In one embodiment, carried by packet encapsulation device 1010 The head portion of the packet of confession includes the first byte of storage hexadecimal 47(Namely 47h), followed by 2 zero ratios Spy, followed by 14 bits associated with user's sequence number.

When the aggregated data speed of transmission is higher, bigger sequence-number field can be used(Such as 24 or 32).Sequence The size of row field to as above in various figures it is described at receiving combinator element occur buffering amount it is related.After And, the size of buffer is related with the ratio of minimum subflow bandwidth to maximum subflow bandwidth.Therefore, each embodiment can be based on The ratio of total polymerization bandwidth and/or highest and small bandwidth subflow, to adjust sequence-number field size(And caused overhead).

In various embodiments, encapsulated data packet is constructed using bytes more more than 188 bytes or less.At each In embodiment, encapsulation of data packet header is constructed using the more or less byte of than 3 bytes.For example, by user Sequence number distributes extra header bits, can use bigger user's sequence number.In this case, reduce at receiver Possibility of the processing with mutually homotactic two encapsulated data packets.

In said embodiment, the fixed data bag size of 188 bytes is used for encapsulated data packet.However, in each reality Apply in example, different fixed dimension packets and/or different variable sized data bags can be used for different subflows, as long as these data Wrap compatible to the input interface of the corresponding modulator for those subflows.

Encapsulated data packet is routed to each from scheduler 1030 by master scheduler 1020.Then sent from scheduler 1030 Thus their packet schematically carries to the corresponding output port of wafer breaker/demultiplexer to modulator or miscellaneous part Corresponding subflow is supplied.

Typically, each received from scheduler 1030 and meet assignment to the data of the frequency spectrum segment bandwidth of the scheduler Bag.Therefore, being received from scheduler with following data rate received data packet, data speed for 1MHz frequency spectrum segment channels is served Rate is about the 1/10 of the data rate from scheduler received data packet for serving 10MHz frequency spectrums segment or region.

Master scheduler 1020 communicates with from scheduler 1030, to recognize which can from scheduler 1030(Or should)Connect Receive next encapsulated data packet.Alternatively, master scheduler 1020, which is received, comes since the state of scheduler 1030 and other management Information, and some of the status information can propagate to each management entity(It is not shown).

In one embodiment, the control for indicating received data packet ability is provided from scheduler 1030 to master scheduler 1020 Signal.In one embodiment, master scheduler 1020 distributes packet in round-robin mode to from scheduler 1030.At one In embodiment, based on user and/or ISP's demand it is preferred that the transmission channel or spectral regions specified, to by homophony Spend the weights assigned for the encapsulated data packet that device 1020 is carried out, be conducive to serviced preferred transmission channel those from scheduling Device 1030 provides more encapsulated data packets.

In one embodiment, it is each associated with bandwidth from scheduler, or with corresponding frequency spectrum segment phase Other identifiers of the channel capacity of association are associated.In this embodiment, master scheduler 1020 is according to each from scheduler 1030 weighting assignment and route data bag.

Typically, master scheduler is according to stochastic route algorithm, round-robin routing algorithm, user's optimization algorithm and service One or more routing of data bags of supplier's optimization algorithm.Can be by by weight factor and each modulator, frequency spectrum piece Disconnected, communication channel(Such as transponder, microwave link, wireless channel)Etc. it is associated and adjust these routes.For example, it is preferable to Frequency spectrum segment can include there is minimum or maximum sized segment, it is related to relatively low wrong or relatively high false channel The segment of connection and preferred communication type(Such as satellite, microwave link, wireless network etc.)Associated segment, with preferably The segment that is associated of user etc..Other devices of weighted channel, communication system, spectral regions etc. can be used for each implementation In the facility environment of example.

Figure 11 describes the flow chart of the method according to embodiment.At step 1110, from data flow D received data packets. At step 1120, accepted packet is encapsulated.With reference to step 1125, packet can include 185 byte payloads and 3 The header data bag of byte.In the occasion of the embodiment of the present invention, it can use with different sequence-number field sizes and/or volume Other header formats of outer control information.

At step 1130, the buffer schematically separated in master scheduler 1020, packet encapsulation device 1010(Not Show)Etc. buffering encapsulated data packet,

At step 1140, wrapper packet is forwarded by master scheduler 1020(Or it is forwarded)Extremely from tune Spend device 1030.

In each embodiment described herein, each encapsulated data packet is coupled to accordingly as a part for corresponding subflow Modulator.However, the embodiment of data elasticity and/or backup is improved suitable for providing, encapsulated data packet can be with coupling Multiple modulators are bonded to using the part as multiple corresponding subflows.In these embodiments, it is associated with encapsulated data packet Sequence number keep it is identical.

In these embodiments, receiver will handle the first encapsulated data packet with proper sequence number(Or it is error-free Miss encapsulated data packet), and ignore other packets with same sequence number.That is, encapsulating number when being reset in receiver During according to bag, those sequence numbers and the encapsulated data packet of the sequence numbers match of sequence encapsulated data packet recently are abandoned.Because sequence number It is circulation or repetition(Every 16,384 encapsulated data packets are repeated for example in 14 bit sequence number situations), its sequence number with The processed encapsulated data packet identical encapsulated data packet encapsulation of data processed before seeming before thousands of data bag The copy of bag, and be therefore regarded as redundancy and abandon or abandon.

Each embodiment described herein provide frequency spectrum non-intersect piece of dynamic spectrum polymerize, with allow to User bandwidth demand changes and is distributed to existing frequency spectrum and add or therefrom subtract frequency spectrum.Furthermore, it is possible to will be small or isolated Frequency spectrum blocks(Namely those frequency spectrums that are too small and can not generally using)Virtually combine to form the more bulk of bandwidth.

Above-described embodiment has multiple advantages, including improved system resilience, because the loss of any one frequency spectrum segment The complete loss of service may not be caused.In addition, when frequency spectrum segment is mapped across multiple transponders, any one forwarding The loss of device will not cause the complete loss of service;On the contrary, there is provided the proper degeneration of service.Using continuous frequency spectrum it is old/ A transponder can be used only by having dispatched, and this turns into potential Single Point of Faliure.

Interference slows down and improved elasticity

For purposes of the following discussion, it is assumed that transmission mechanism make use of four carrier waves, S0 ... S3(Although difference can be used The carrier wave of number).Moreover, it is assumed that carrier wave is discrete in a frequency domain(And it is non-adjacent)To cause any signal interference potentially only Influence the subset of burst(And it is not all).Finally, it is assumed that for the available control signal of receiver by about the anti-of signal condition Feedback is provided to transmitter.These hypothesis are readily applicable to each other embodiment herein with reference to described in each accompanying drawing.

As burst Si(0<=i<=3)During the influence being interfered, receiving point notices the C/N of burst(Carrier wave and noise Than)Reduction.It informs transmission equipment side on the reduction using control channel.Transmitter then reduces FEC ratios(By by ratio Change to 2/3 to cause FEC stronger from such as 3/4)To enable receiver to resist increased noise.The program is referred to as adaptively Property coded modulation(ACM).

Each embodiment described herein can be used for the FEC for only changing specific burst or a part of data flow by providing The ability of ratio, and strengthen ACM efficiency(Rather than traditional whole carrier wave of change or the side of the FEC ratios of data flow Method).In this manner, maintaining higher handling capacity in various embodiments compared with conventional art.

If each embodiment described herein provide disturbed for any available FEC ratios it is too powerful and can not Mitigate its effect, then receiver can not lock carrier wave(Such as carrier wave S2)And inform transmitter on the loss.Transmitter exists Route data again on carrier wave S1, S3 and S4.Effectively, " bypass " although frequency spectrum burst S2 and maintain service relatively low Handling capacity.With traditional single-carrier scheme on the contrary, stronger interference causes complete weakening the carrier wave that service is lost completely.

Each embodiment described herein provides the carrier waves different from previously known and set.Specifically, with signal by The conventional OFDM systems that a large amount of mutual adjacent subcarriers are constituted are different, and each embodiment provides discrete and frequency spectrum not phase Adjacent carrier wave.In this manner, largely reducing influence of the strong jamming for front end saturation or passband in each burst.

Each embodiment described herein causes burst transfer or heavy-route to the different piece of frequency spectrum to resist interference, Cause to recover service completely with the cost that handling capacity slightly reduces.

Each embodiment described herein to realize when there is strong jamming without interruption conveying.For example, some are implemented Example configures the subset of such as S0 and S1 carrier wave as protection group make it that S0 or S1 is impaired but simultaneously non-concurrent is damaged, And cause no data degradation.In this case, S2 and S3 can be used as Independent Carrier Wave continuous operation rather than any protection group The part of group.Alternative, they can be grouped into the second protection group mutually to protect.It is used as the 3rd alternative, more than two Carrier wave, such as S0 ... S2 can form protection group and S3 keeps independent.Inference is to extreme case, and all four carrier waves can be A part for group is protected to resist widely distributed interference etc..Flexibility ratio is great and can matched somebody with somebody with intense adjustment Structure is put with maximally effective processing particular type interference.

Make it possible to dynamically to add and delete carrier wave in this each embodiment discussed with further improve such as because Elasticity caused by equipment failure and/or interference.For example, system can use independent action(Namely not constitute protection group) Two carrier waves S0 and S1, and the 3rd carrier wave S2 can be added in the region of usable spectrum later if S0 or S1 are weakened In.In one embodiment, the 3rd or alternate carrier(Such as S2)It can configure as replacement carrier wave, protect group temporarily A part, a part for the protection group of dynamic formation.

It is used as replacement carrier wave, alternate carrier(Such as S2)" replacement " of any one for S0 or S1 can be configured for use as to carry Ripple, therefore effectively substitute for being weakened the purposes of carrier wave.

It is used as a part for interim protection group, alternate carrier(Such as S2)It can configure to be formed with having weakened carrier wave connection Close or associated interim protection group.If for example, S1 is weakened, protection group can be formed between S1 and S2. S0 keeps independent.When the cause of weakening is solved by recovering S1, then S2 can be removed.

It is used as a part for the protection group of dynamic formation, alternate carrier(Such as S2)Can configure as existing carrier wave it In dynamic formation protection group a part, this for resistance transition interference be effective, the transition interference effect is multiple The length of the time interval of carrier wave be enough to cause data-bag lost and other weaken, but the length of time interval e insufficient to as Go up routeing again completely for the order business.For example, it is assumed that S0 ... S3 constitutes four carrier transmission systems, and S2 and S3 experience By carrier wave ACM or retransmit the transition that can not be efficiently solved and disturb.In this embodiment, S2 and S3 is matched temporarily To constitute DSS protections group, and S0 and S1 keeps independent.Final result be handled in the way of robust interference and handling capacity it is temporary When reduce.Once solving the basic cause that influence S2 and S3 weakens, they can be redeployed as independently acting on.

Disjoint repetitive extension frequency spectrum(DRSS)

Each technology and embodiment described herein go for providing disjoint repetitive extension frequency spectrum(DRSS)It is real Example is applied, it is provided has strong radio frequency in radio communication channel(RF)" not interrupting " conveying of payload data during interference. For example, the conventional art for radio communication is directed to use with single carrier RF signals, the single carrier RF signals, which have, to be designed for In the carrier over noise of given communication channel(C/N)It is more accurate than lower delivering errorless(QEF)The error protection encoding rate of data.Exist During the interference of increase, reduce error protection encoding rate(Become stronger)To help to mitigate the influence that signal is reduced at receiver.Should The problem of method, is that very strong interference is in the band for receive signal and causes C/N ratios to be less than QEF threshold values, and this can To cause the complete loss of data, no matter how strong encoding rate is.This be probably due to(Among other reasons)Receiver front end RF down-converter circuits it is fully saturated, the circuit includes such as LNA, frequency mixer and using analogue-to-digital converters(ADC)'s The part of sample circuit.Therefore, the optimal error coded technology even if based on single-carrier system can not be also resisted as with interior dry The interference for the carrier power disturbed and provided more than QEF C/N threshold values.

DRSS make use of the non-intersect carrier wave of multiple frequency spectrums.In DRSS technologies, N number of(N>=2)Transmitted on carrier wave former Beginning payload(P), under usual situation, each using the different physical layer schemes suitable for their respective channel situations And be encoded and modulate.In simple embodiment, all carrier waves are constructed using same physical layer parameter, but are mutually being mutually disjointed (Separation)Frequency spectrum blocks in transmit.Generally, carrier wave not necessarily same frequency spectrum bandwidth.However, the information carrying of each carrier wave Capacity(Determined by symbol rate, code check, planisphere, frequency response are fallen with other associated modulation parameters)Need needed for being enough to carry Payload.

In emitter terminals, first by virtual spectrum aggregating as described above(VSA)Technology is to payload(P)Located in advance Manage and be divided into fixed dimension packet(pi, i=0,1,2 ...)Sequence.The output end of subsequent VSA preprocessors Each packet piN times are replicated, and each copy is transmitted on all N number of carrier waves.

In receiving terminal, receiver is from each carrier wave demodulation data.When all carrier waves have good C/N, receiver will be extensive Multiple each packet piN number of inerrancy copy.N-1 copy is abandoned, and for each i packets piLeave a copy. All selected copies are provided to the VSA processors of receiving terminal, and wherein original payload P is reconstructed and as described above again It is secondary to be delivered to its recipient being intended to.

When there is strong jamming, the subset of N number of carrier wave can suffer from the complete loss of data.As long as however, being given any At least one carrier wave of fixing time has C/N on its QEF threshold value, then receiver will access at least the one of each packet pi Individual good copy(Among N number of copy of transmission).This causes the VSA processors at receiver to be reconstructed effective load without error Lotus.

In above scheme, multiple disjoint carrier waves of frequency spectrum are unlikely influenceed by same disturbance signal simultaneously, Except non-interference is by chance extremely wide band.Strong jamming can cause complete data loss until N-1 carrier wave, as long as but for Each packet PiThere are still at least one carrier wave for being capable of inerrancy transport data packets, then remain able to needed for recovering completely Payload.For the interference quickly moved in frequency domain, which may imply that due to transport data packets pi carrier wave this This possibility of the best carrier suitable for transport data packets pi+1 is can suffer from disturbing and may not be afterwards, will be from difference Carrier wave obtains continuous packet.

Allow multiple non-intersect frequency spectrum bursts using the VSA technologies as described in referring to figs. 1 to Figure 11 and its associated description Polymerization.When DRSS is used to be used in combination with spectrum aggregating, strong new ability has been obtained.For example, DRSS selectivity Use the part for making it possible to map to carrier wave the frequency spectrum that may be easy to be interfered(Such as unlicensed band).Change speech It, DRSS's uses so that ISP by the whole set for the carrier wave being polymerize or its subset by mapping to potential noise Frequency band is still constituted payload with high flexibility conveying simultaneously, and begins to use noise or unregistered frequency band.

Figure 12 describes the high-level block diagram for the system for having benefited from each embodiment.Specifically, Figure 12 describes system 1200 high-level block diagram, system 1200 is using above-mentioned VSA technologies schematically to polymerize four frequency spectrum burst S1-S4, and this four Individual frequency spectrum burst is included in the redundancy payload communicated on frequency spectrum burst S2 and S3.Example system 1200 is mixing VSA/ DRSS systems, use carrier wave S0, S1, S2 and S3 transport payload P.Example system 1200 is described as logical using satellite Link 1260 is believed, although can be using other communication links with additional type.

System 1200 generally include VSA preprocessors, modulator/transmitter, communication link, demodulator/receiver and VSA preprocessors.

VSA preprocessors 1210 perform each burst function 1212 described herein, parity check code function 1214, control Head insertions function 1216 and scheduler function 1218.VSA preprocessors 1210 are applied to input signal or stream payload P Processing or burst are schematically to be designated P0' to P3' four stream parts or segmentation.As it was previously stated, will be believed with meeting carrier wave Number the mode of corresponding frequency spectrum burst modulate each of four stream parts or segmentation, such as via communication link.

Modulator/transmitter schematically includes four modulator 1220-1 to 1220-4, is respectively suitable for modulation and is designated P0' to P3' payload stream part or be segmented to produce modulated signal S0To S3, wherein modulated signal is by single combination Device/multiplexer 1230 is combined.Upconverter 1240 and amplifier 1250 handle obtained combined signal, with schematically The signal for being applied to transmit via communication link 1260 is provided.

Communication link 1260 is described as including transmitter 1260-T satellite communication link, and 1260-T is via satellite 1260-S is sent signal is transmitted to receiver 1260-R.

Demodulator/receiver schematically includes extracting modulated signal S from having received satellite-signal0To S3Signal separator Device/demultiplexer 1270, and suitable for demodulation modulated signal S0To S3And therefrom retrieval obtain payload stream part or Person is segmented P0' to P3' four demodulator 1280-1 to 1280-4.

VSA preprocessors 1290 perform various buffer management functions 1291 described herein, buffer function 1292, nothing Packet is deleted function 1293, even-odd check code processor function 1294, resynchronisation and alignment function 1295, control head and removed Function 1296 and combiner function 1297.VSA preprocessors 1290 are designated P suitable for schematic process0' to P3' four stream Part is segmented to recombinate input signal or stream payload P.

In various embodiments, as the frequency spectrum burst S0 and S1 and unused DRSS of Independent Carrier Wave.Assuming that these carrier waves " clean " frequency spectrum is mapped to, wherein strong jamming is not usually problem and standard code rate(Such as LDPC3/4,5/6 etc., And such as Reed Solomon or BCH block code)It is just enough for each carrier wave.

In various embodiments, frequency spectrum burst S2 and S3 uses DRSS.In other words, replicate and send on carrier wave S3 Payload of the carrier wave in S2.S2 and S3 use standard encoding technique(Such as LDPC3/4,5/6 etc., and such as Reed Solomon or BCH block code).The example, which assumes that carrier wave S2 and S3 will map to have, can cause number in S2 or S3 According to the strong jamming lost completely(Such as malice or unintentionally)Frequency spectrum.By ensuring spectrum gap between S2 and S3, So that interference influences S2 and S3 possibility to minimize simultaneously.Therefore, as long as S2 and S3 be not by the interference effect on threshold value, The signal after polymerization can then be recovered.

In various embodiments, the system is configured such that S0, S1 and S2 aggregate capacity are enough transport payload P.Similar hypothesis is also suitable for S0, S1 and S3 aggregate capacity.

Payload P is fragmented as small fixed dimension packet, and controls head to be inserted in meet VSA as described above The beginning of each packet of technology.The extra parity check code of affix with allow receiver check header integrity.Three Individual discrete scheduler is used to distribute packet to being designated P0’、P1' and P20' three discrete streams, S0 and S1 it is each one tune Spend one scheduler of combination group of device, S2 and S3.P21' it is P20' copy.The scheduler ensures distribution to each carrier wave Data volume and not less than its information carrying capabilities.

In various embodiments, P0’、P1’、P20' and P21' it is fed to discrete modulator(Be respectively Mod0, Mod1, Mod2 and Mod3)To produce carrier wave S0, S1, S2 and S3.In each other embodiment, complex modulator is used.

Four carrier waves are combined using standard RF combiners, required frequency band will be converted to thereon, uses power amplifier (PA)It is amplified, and then launched using antenna.Bend pipe satellite transmitted signal to potential multiple receptions are defended Star.

In recipient, four carrier waves are demodulated by four discrete demodulators.Packet from demodulator delays in discrete Rush in device and queue up(Each demodulator one).This be it is required because the propagation delay of four carrier waves may it is big different and It can change over time.Remove empty bag(If for example using DVB-S or DVB-S2 as physical layer standard by modulator when The empty bag of introducing), and check parity check code to detect and correct control necessary to four data packet stream correction process Header information.Abandon the packet with incorrect parity check code.Resynchronisation and alignment block ensure correctly to sort from institute There is the packet of available stream, and be discarded in the repetitive data packet received on carrier wave S2 or S3(For example this is in two signals To occur when being respectively provided with good C/N).Peel off the payload section of control head and merging data bag final has to produce Imitate load p.

Interference in S2 and S3 can be with localization to specific receiving point, or if existed in transmission equipment side, then influence exists Those signals of all recipient's points.In the case of localization is disturbed, specified point can be subjected to partly or completely data Loss, such as S2.In those scenarios, the packet received on S3 is selected.At other receiving points, S3 may be cut It is weak, the packet received on S2 is selected in this case.If interference is can alternately to influence S2 and S3 scanning Person's type, then receiver is resorted to is switched over based on each packet between two carrier waves.

System 1200 is described as using bend pipe satellite communication link 1260.However, in various other embodiments, can To use other types Wi-Fi, such as point-to-multipoint terrestrial broadcast systems or the point-to-point microwave system for network backhaul System.More generally, system is effectively applied to any data payload on wireless channel(No matter synchronization or subpackage Change)Transmission.

In another embodiment, one or more modulated signals, such as optical network are transmitted via alternative network 1265 Network, IP network road or other cable networks.

Each advantage of embodiment includes significantly higher frequency spectrum service efficiency and too small and can not use using those Isolated frequency spectrum segment ability.Each embodiment is suitable for satellite application, such as those are used for bend pipe satellite communication (SatCom)The point-to-point Radio Link of application, the wireless backhaul foundation structure provided using microwave tower etc..

Each embodiment provide a kind of mechanism, wherein can by by extra bandwidth block " additional " to what is used Those bandwidth blocks distribute bandwidth, thereby promote " paying on demand for ISP and consumer(pay-as- you-grow)" business model.

In various embodiments, single transponder is used to propagate the carrier wave letter for including multiple brewed subflows in satellite system Number, each brewed subflow occupies respective tones spectrum segmented regions.In other embodiments, multiple carrier signals are via corresponding Transponder is propagated.

In various embodiments, the single microwave link in microwave telecommunication system, which is used to propagate, includes multiple brewed subflows Carrier signal, each brewed subflow occupies respective tones spectrum segmented regions.In other embodiments, multiple carrier signal warps Propagated by corresponding microwave link.

In various embodiments, single wireless channel is used for propagation and includes multiple brewed subflows in wireless communication system Carrier signal, each brewed subflow occupies respective tones spectrum segmented regions.In other embodiments, multiple carrier signals are via phase Answer wireless channel propagation.

Supported using effective failure of protection group

By the way that stream is segmented into multiple flow points section and via corresponding these flow points of frequency spectrum fractional transmission section, it can improve pair In the elasticity of the interference such as from malice scanning person, leakage equipment etc..

Each embodiment further by replicate flow point section and via different spectral region, alternatively use different modulating Technology modulation/transmission has replicated flow point section to improve elasticity.In certain embodiments, as set forth above, it is possible to by wire communication chain Transmit flow point section that is original or replicating in road.

Each embodiment further protects group to improve elasticity by providing segmentation stage, wherein in backup spectral regions In response in the first spectral regions more than threshold level channel weaken and modulation/transmission in the first spectral regions it is brewed/ The flow point section of transmission.In various embodiments, backup spectral regions include and the frequency associated compared with low priority data flow point section Compose region.In various embodiments, according to data type, user, SLA(SLA)Characteristic and/or other criterions refer to Determine priority.

In various embodiments, be not distribution enliven frequency spectrum blocks and the backup frequency spectrum that remains unused it is another equal in magnitude Block, but utilize the frequency spectrum blocks of number of smaller.Frequency spectrum blocks can be distributed to identical or different satellite(Or other radio communications Mechanism), identical or different transponder etc..For example purposes, it is assumed that each the bandwidth capacity of smaller frequency spectrum blocks is Identical, although this is not necessary to each embodiment.In the range of backup frequency spectrum blocks or region, backup frequency spectrum blocks or area Domain should be at least big as maximum frequency spectrum blocks or region.In the case where frequency spectrum blocks or region have identical size, backup Frequency spectrum blocks or region also have identical size.

In various embodiments, the information of such as channel state feedback is received at transmitter.Reference picture 12, can be via Aerial network 1265 or any other mechanism receive optional feedback of status(SF).For example, in classical satellite system, existing anti- To channel, receiver can reversely be pressed with using backward channel with representing transmission quality, error rate, buffer to transmitter transmission The information of power, receiver state etc..Here in each described embodiment, can using any mechanisms known for from Receiver provides feedback or status information to transmitter.

Figure 13 describes the flow chart according to one embodiment.Specifically, Figure 13 describes the use according to each embodiment In the flow chart for the mechanism that enhanced channel elasticity is provided using optional priority.Here, the method for the reference picture 13 can be with There is provided at one or more VSA transmitters as described above.

In step 1310, one or more data flows are received from one or more users.With reference to square frame 1315, one or many Individual data flow can be received via satellite link, microwave link, wireless channel, wire message way and/or other modes.

At step 1320, each data flow is fragmented as multiple flow points section and/or subflow, each flow point section and/or son Stream is disconnected associated with respective tones spectral slice, as discussed above concerning described in each embodiment., can be according to user, solid with reference to square frame 1325 Be sized or variable-sized usable spectrum segment, data type, signal type and/or other specification come limit flow point section And/or subflow.

At step 1330, select each modulation parameter, bandwidth allocation, priority level and/or other specification for Flow point section and/or subflow and their corresponding frequency spectrum segments.Therefore in the disconnected internal modulation of their respective tones spectral slice and transmit each Individual flow point section and/or subflow.

At step 1340, each channel associated with frequency spectrum segment is monitored to recognize suboptimum channel performance, such as Channel disturbance, channel impairments etc..With reference to square frame 1345, this monitoring can occur at predetermined space, in each related use After the event of family, after the customer incident of predetermined number or according to some other scheduling.For example, in various embodiments, There is provided and interrupt driving monitoring, wherein when channel impairments exceed one or more threshold values, receiver only transmits information to corresponding hair Emitter, the threshold value is all in this way can be by adjusting Forward Error Correction(FEC)One or more levels of parameter recoverable, more than FEC The level of correction capability, the level for representing channel-failures etc..

At step 1350, suboptimum channel is handled according to channel performance and/or channel data priority-level.Reference side Frame 1355, can adjust Forward Error Correction(FEC)And/or the other specification associated with channel.These adjustments can be based on each Threshold value, such as one or more interference thresholds, one or more detraction threshold values etc..Under the occasion of level of priority processing (Such as wherein channel significantly fails), can be via alternate channel(It is multiple)Or with the letter associated compared with low priority data Road(It is multiple)And modulate and transmit the flow point section and/or subflow associated with channel.That is, scheduler can adjust each tune Degree is with better than compared with low priority segmentation and/or subflow treatment priority segmentation and/or subflow.

At step 1360, on multiple frequency spectrum segments alternatively polymerization segmentation and/or subflow, with cause they via Multiple traffic channels.Furthermore, it is possible to support multiple communication channels via different communication network or link.With reference to step 1365, each link includes the point-to-point link of such as satellite link or microwave link, such as provided by each wireless channel Point-to-multipoint link, wire message way and/or other mechanism it is one or more.

In response to channel quality reduction or failure, above-mentioned steps be intended to based on high priority data power adjustment FEC and/or other The individual channel processing of parameter and reallocation channel either or both of which.In response to service level agreement(SLA), characteristic quantity According to, acquiescence carrier parameter selection and/or other criterions, implement these steps substantially to automate mode.Typically, with base Automated manner operating system in sheet, to ensure effectively to use preferential data channel as far as possible.Different data streams can be with difference Priority level is associated.Different user can be associated from different level of priority.

The operation of each embodiment is route again automatically with providing data on usable spectrum chunk by VSA transmitters, so as to Bypass the frequency spectrum blocks of one or more failures.Each embodiment is operated to be route again automatically with providing data by VSA transmitters, To provide load balance function or otherwise utilize usable spectrum block as efficiently as possible.

As it was previously stated, each prioritization techniques can be used to ensure that conveying high-priority service, and use from The service remaining protection bandwidth of high priority business inserts data to convey low priority traffice according to circumstances.

Each embodiment is such as by using for distributing to the weighted fair queuing of each business-level(WFQ)Scheduler To support multiple priority levels.

Each embodiment provides interference by using spectrum aggregating and slowed down.That is, when interference(Substantially whether be CW or Complicated)When making particular channel performance degradation, only adjust the FEC rates of particular channel to compensate the performance degradation.If interference is too Individually it can not be overcome using more preferable FEC encoding rates by force(Or interference it is powerful allow adjust FEC encoding rates so that gulping down The amount of telling is reduced to unacceptable low-level), then the channel that must reallocate is to different spectral segment.Especially, each embodiment Slow down every burst FEC rates adjustment there is provided interference(The FEC of each burst is adjusted depending on the specific annoyance level of each burst Rate)And the reallocation of frequency spectrum burst(If interference is too powerful in specific burst and can not be slowed down using higher FEC rates, by this The not whole burst collection of burst distribute to transponder another region or another transponder and do not influence other bursts completely).

Each embodiment is suitable for the encryption via some or all of data sectionals associated with data flow, and provides and change The security entered.That is, in various embodiments, Channel Modulation circuit is applied to include encryption function, and channel demodulation circuit Suitable for including decryption function.This encryption/decryption functionality can based on large-scale encryption key, the encryption key often changed or The use of some of combination.Such as AES technology can also be used in the occasion of each embodiment.VSA skills described herein The use of art also provides extra security level even without encryption.Using encryption, security becomes extremely robust.

In one embodiment, using shared encryption key or each data sectional of technology secrecy and/or channel.At it In his embodiment, using respective encrypted key or each data sectional of technology secrecy and/or channel.

Each embodiment be intended to operable system to perform each step described herein and function, method, equipment, in terms of Device etc. is calculated, data flow is such as divided into multiple subflows by the step and function;Each subflow is modulated to provide to be applied to The corresponding modulated signal transmitted via corresponding spectrum fragmentation or block;Monitored for each frequency spectrum segment and indicate channel performance Data;And for the channel of each degeneration, adjust one or more corresponding modulation parameters and recognized channel accordingly to compensate Degenerate.

In various embodiments, one or more modulation parameters are adjusted channel degradation compensation will have been recognized up to degeneration Threshold level.FEC rates and/or other specification can be adjusted to realize the purpose.It can be tieed up between each frequency spectrum segment or block Hold spectrum gap.

Exceed threshold level in the degeneration for having recognized channel(Such as too many mistake can not be corrected, too many mistake can not be corrected And with enough bandwidth etc.)Or in the case of channel simple fault, each subsequent embodiment operates to select standby frequency The spectral slice cut-off modulated signal associated with having recognized degenerate channel is used.It can be needed for the frequency spectrum segment or block newly selected Will by different way re-modulation or modulation subflow.In the case of limited number frequency spectrum segment or block, can data flow and/ Or priorization is provided between subflow.

Each embodiment is intended to the compound or multiple subflow at least some frequency spectrum segments or block, such as passes through group Close two or more brewed subflows and accordingly combined subflow to be formed, combined subflow each be modulated onto suitable for via On the modulated signal of the bandwidth the having frequency spectrum segment transmission compatible with the total effective data rate for having combined subflow.

Each embodiment is intended to transmit carrier signal via the respective channel in communication system.For example, satellite communication Respective transponders in system, respective radio channels can in corresponding microwave link, and/or wireless communication system in microwave telecommunication system With support one or more carrier signals each.

Each embodiment is intended to the payload portion by the way that the Sequence of data flow to be encapsulated in corresponding encapsulated data packet Divide and be divided into data flow the head of multiple subflows, the wherein Sequence of data flow encapsulated data packet corresponding to being included in Corresponding sequence number in point is associated;And each encapsulated data packet will be included in corresponding subflow.Alternatively, each encapsulation of data Bag can be included in one or more subflows.Sequence number can be represented by the field with least 14.Encapsulated data packet can To include hexadecimal 47 in the first byte.

Each embodiment is intended to a kind of receiver, and it composes each brewed subflow of segment reception via respective tones;Demodulation is every Individual brewed subflow;And combine and multiple demodulated subflow to recover data flow.Combination has demodulated subflow can to recover data flow To be provided via following:Sort the encapsulation of data received via one or more subflows according to their corresponding sequences number;And Extract the Sequence of data flow thus to recover data flow from ordering encapsulated data packet.Additionally provide discarding sequence number with The encapsulated data packet that the sequence number for the encapsulated data packet being most recently received matches.

Encryption and secure communication

Virtual spectrum aggregating as described above(VSA)The use of technology allows the transport payload on multiple carrier waves, its In each carrier wave can potentially disperse in a frequency domain.Each carrier wave can using the encryption of different keys, and with each carrier wave Associated bandwidth can also be randomly assigned to cause the aggregate bandwidth for being constituted carrier wave to be equal to institute necessary to transport payload Need bandwidth.

Each embodiment is intended to encrypt using discrete encryption key, be randomly assigned bandwidth and dissipate in a frequency domain Multiple carrier waves make it that the problem is greatly more complicated for earwig.Can be only with minimal-overhead pair needed for receiver Continuously change key in each frequency spectrum burst with synchronous with transmitter holding.These embodiments are carried with the amplitude of several orders of magnitude High overall safety intensity.Improve the security of communication channel(N M power)Times, wherein N is that transmitter and receiver are tieed up The number of key in the look-up table held, and M is the number of the frequency spectrum burst for virtual aggregation.For example, four carrier waves and each The use of 128 keys of carrier wave improves computational complexity 1284It is again or rough 268,000,000 times.

Each embodiment provides a kind of effective and general technology, for multiple fault blocks of wireless frequency spectrum to be aggregated into One continuous dummy block with cause aggregate bandwidth be no better than constituted block bandwidth summation.Each embodiment provides dynamic And piece fault block or frequency spectrum burst is continuously repositioned to strengthen security.

Each embodiment is provided and the every of multiple subflows is encrypted using different encryption keys from a session to next One.In one embodiment, encryption key is periodically repositioned together with each frequency spectrum segment.In other embodiments, Reposition encryption key or each frequency spectrum segment.

Typically, multiple frequency spectrums can be divided into above with reference to each transponder/transmission channel described in each accompanying drawing Segment or region.Each of these frequency spectrum segments or region can be designated specific substream of data.Can according to exclusive or Person public modulation technique modulates each substream of data.In various embodiments, can be in one or more satellites using many Individual transponder.In these embodiments, only combine those will via shared transponder transmit those modulated signals simultaneously And then frequency conversion is carried out together.There is provided the setting of double transponders in various embodiments(The uplink portion of such as system And the downlink portion of system), wherein the first transponder is used to transmitting the of multiple data flows associated with data flow D A part, and the second transponder is used for the Part II for transmitting the multiple data flows associated with data flow D.Although being retouched herein State as double transponder embodiments, it should be understood that example communication system can include uplink/downlink transponder Any suitable number and/or combination.

In another embodiment, the transponder that double transponders are set is used as the discrete outer safe lane of band with the biography that communicates Running parameter, such as aggregate bandwidth are sent, to configure VSA receivers.In various embodiments, modulated wave is independently transmitted Shape.

In various embodiments, change above with reference to wafer breaker/demultiplexer described in accompanying drawing to further comprise encryption Function.In various embodiments, change above with reference to the modulator described in accompanying drawing to further comprise encryption function.It is any this In a little embodiments, the computing device of such as Fig. 3 computing device 300 can be used to implement each function, wherein with memory It is applied to implement the software of each said function with the computing device of input/output circuitry cooperative cooperating.

In various embodiments, modification above with reference to wafer breaker/demultiplexer described in accompanying drawing, VSA preprocessors and/or Modulator function is to further comprise encryption function.In these any embodiments, the meter of such as Fig. 3 computing devices can be used Calculate device to implement each function, wherein being suitable for reality with the computing device of memory and input/output circuitry cooperative cooperating Apply the software of each said function.

In various embodiments, modification is above with reference to the demodulator described in accompanying drawing, combiner and/or VSA preprocessor work( Can, to further comprise encryption function.In these any embodiments, the calculating dress of such as Fig. 3 computing device can be used Put to implement each function, wherein being applied to implement with the computing device of memory and input/output circuitry cooperative cooperating The software of each function described in this.

Figure 14 A, Figure 14 B describe the schematic diagram for contributing to the frequency spectrum for understanding each embodiment to distribute.Specifically, Figure 14 A Schema describes 12MHz carrier waves, is fragmented as four carrier waves, is schematically four discontinuous frequency spectrum blocks, including the first 3MHz Block 1405, the 2nd 3MHz blocks 1410, the 3rd 2MHz blocks 1415 and 4MHz blocks 1420.Each frequency spectrum burst can use different keys Encryption.By obtaining extra safety according to following characteristics;Namely(1)In the beginning of communication session, by each burst assignment To randomly selected spectral bandwidth, to cause summation to be equal to required aggregate bandwidth.Potential earwig will then face acquisition The knowledge of the spectral bandwidth of each burst increases burden in order to reconstruct raw information;And(2)N number of burst use so that Eavesdropping task has bigger computational intensity.If for example, N and for N number of burst key set from because of session and meeting Talk about and change, significantly enhance security level.

Figure 14 B illustratively describe showing over time using four effective spectrum bursts and unused frequency spectrum blocks Example progress, schematically there is five discontinuous frequency spectrum blocks, including the first 3MHz blocks 1425 at time T0(Key=K1), second 3MHz blocks 1426(Key=K2), the 3rd 3MHz blocks 1427(Key=K3), the 4th is not used 3MHz blocks 1428(Key= Unused is not used)And 3MHz blocks 1429(Key=K4).Carrier wave at time T1, block 1426 is relocated to block 1428, so that block 1426 is not used.Carrier wave at time T2, block 1427 is relocated to block 1426, so that block 1427 are not used.Notice at time T2, key used in carrier wave is changed into K1 ' from K1 at block 1425.Key, which changes, also to be sent out Life is in time slot T3 and T4, and the burst conversion of one of carrier wave changes along with the key in identical or another carrier wave. At time T3, the carrier wave at block 1429 is relocated to block 1427, so that block 1429 is not used.For close at block 1427 Key 3 is replaced by key K4 '.Carrier wave is relocated to block 1429 at time T4, block 1425, so that block 1425 does not make With.Key 4 for carrier wave 1429 replaces with key K1 ', and the key 3 for being used for carrier wave 1426 replaces with K3 '.

In the occasion of each said embodiment, VSA schemes as described above make use of multiple carrier waves, with requiring largely not Different using the legacy frequencies jump scheme of frequency spectrum blocks, instantaneous VSA schemes are required nothing more than in a small amount(For example it is one in the above examples It is individual)Extra spectrum block.

Figure 15 describes the flow chart according to one embodiment.Specifically, Figure 15 describes the use according to each embodiment In the flow chart for the mechanism for providing elastic and with optional priorization the security of enhanced channel.Described in this reference picture 15 Method can be provided at all one or more VSA transmitters as discussed with reference to each accompanying drawing, and/or for such as defending At stellar chain road, microwave link, wireless channel, wire message way and/or other communication channels of other modes or the transmitter of link. Specifically, in various embodiments, to Functional Unit of those supports above with reference to the modulator and demodulator function described in accompanying drawing Part is changed, to further comprise encrypting and decrypt function.In addition, encryption function can be provided in VSA preprocessing function elements In the range of, and decrypt function and can be provided in the range of VSA post-processing function elements.

At step 1510, one or more data flows are received from one or more users.With reference to square frame 1515, Ke Yijing One or more data flows are received by satellite link, microwave link, wireless channel, wire message way and/or other modes.

At step 1520, each data flow is fragmented as the segmentation of many height and/or subflow(Schematically to be N number of).Each Flow point section and/or subflow with as described above with reference to each embodiment respective tones spectral slice break and/or link it is associated.With reference to step 1525, can according to user, fixed dimension or variable-sized usable spectrum segment, data type or signal type, segment or Link capacity, segment or link parameter and/or other specification or criterion limit flow point section and/or subflow.

At step 1530, for flow point section and/or subflow or their corresponding frequency spectrum segments or link, each is selected to adjust Parameter processed, bandwidth allocation, priority level and/or other specification.Therefore, their respective tones spectral slice are disconnected or link internal modulation simultaneously And transmit each flow point section and/or subflow.

In addition, also having encrypted at least some bursts at step 1530.With reference to step 1535, identical encryption key can be with Burst is encrypted for all, respective encrypted key can be used for each encryption burst, and some secret bursts can use identical Encryption key, and other encryption bursts use other one or more encryption keys etc..In addition, in various embodiments, from Selection will be used for the encryption key of specific burst in key list.In other embodiments, in the encryption for specific burst Between place produce will be used for the encryption key of the specific burst.When there are each other mechanism for producing encryption key, Each other combination of expectable corresponding and/or shared encryption key.

At step 1540, break via their respective tones spectral slice or link is transmitted towards one or more receivers and added Close/modulation burst and any unencryption/modulation burst.In addition, if necessary to also transmit decryption key information.With reference to square frame 1545, decryption key information can be transmitted via with interior transmission channel, out-of-band transmission channel etc..Decryption key information can be wrapped Include specific decruption key, the renewal table associated with keys for encryption/decryption etc..

It is close for the association of subflow transmission channel, channel width distribution, encryption key table clause, encryption at step 1550 Key transmission means and/or other specification make optional adjustment.With reference to square frame 1555, can in response to the expiring of the scheduled time, The generation for the threshold number that specific key is used, make in response to particular event or some other factors these adjustment.

Specifically, make it possible to from one or more add by increasing above with reference to each adjustment described in step 1550 Ciphertext data burst extract coherence data institute must resource quantity and strengthen security using channel hopping and other mechanism.

Above-mentioned steps are intended to each method, its be suitable to by by flow fragmentation for it is multiple segmentation, encrypt it is some or all of these It is segmented, modulates each segmentation and there is provided the safety of data flow and elastic transport via corresponding transmission channels transmission segmentation.As above Described 15 each encryption technology can be used in the occasion of technology herein with reference to described in any other accompanying drawing referring to the drawings.

In one embodiment, transmitter and receiver, which are maintained, includes the look-up table of a large amount of encryption keys, wherein pseudo- Randomizer is used for concordance list and extraction will be used for encryption therefrom or the specific of ciphertext data burst segmentation adds Key.The unencryption of table is used to index to have encrypted burst to allow a receiver to successful decryption burst.Therefore, exist In one embodiment, provide required using the management program in the computing device suitable for each embodiment or other programs Function with set up encryption key look-up table, update encryption key look-up table if desired, via pseudorandom number generator or Other modes produce table index data and are encrypted and/or decrypted using the encryption key indexed therefrom and be interested Data fragmentation.

Each embodiment described herein provides the dynamic spectrum segment of inlet flow to add using discrete key Close each segment and it is randomly assigned bandwidth.

Dramatic benefit, including enhanced security are above mentioned embodiment provided, because(1)Potential earwig is subsequent Face and obtain the spectral bandwidth knowledge of each burst and increase burden so as to reconstruct primary signal;And(2)The use of N number of burst So that the task of eavesdropping become calculate intensity it is bigger.In addition, intentionally and periodically reorientation frequency spectrum burst is to new center frequency Rate, so that potential earwig is more difficult to follow the trail of and decodes composition carrier wave.

Each benefit of embodiment includes the frequency spectrum service efficiency and enhanced security greatly improved.Each embodiment Suitable for satellite application, such as those are used for bend pipe satellite communication(SatCom)Point-to-point Radio Link, such as using microwave Wireless backhaul foundation structure that tower is provided etc..

In various embodiments, it is used to propagate using the single transponder in satellite system and includes multiple brewed subflows Multiple carrier signals, each brewed subflow occupies its respective tones spectrum segmented regions.In other embodiments, multiple carrier signals Propagated via respective transponders in double transponders or the setting of double satellites.

In various embodiments, the single microwave link in microwave telecommunication system, which is used to propagate, includes multiple brewed subflows Multiple carrier waves, each brewed subflow occupies its respective tones spectrum segmented regions.In other embodiments, multiple carrier signal warps Propagated by corresponding microwave link.

In various embodiments, single wireless channel is used for propagation and includes multiple brewed subflows in wireless communication system Multiple carrier signals, each brewed subflow occupies its respective tones spectrum segmented regions.In other embodiments, multiple carrier wave letters Number propagated via respective radio channels.

Computer program product can be used to implement the method or technique associated with each embodiment, wherein the calculating Machine program product is included in the non-provisional computer-readable recording mediums for being stored thereon with computer-readable instruction, the computer Readable instruction can be operated such that computerized device performs methods described or technology by computerized device.

Although preceding description is for each embodiment in the present invention, the base region of the present invention can not departed from In the case of draw other and the further embodiment of the present invention, and those skilled in the art can be readily derived still body The embodiment of many other changes of these teachings is showed.Thus, OK range of the invention will be according to claims below To determine.

Claims (10)

1. a kind of method for being used to provide safety data transmission via spectral slice, including:
Data flow is divided into multiple output subflows, the disconnected phase of respective tones spectral slice of each output subflow and first carrier signal Association, and with the data rate compatible with the bandwidth that the respective tones spectral slice is broken, wherein it is many that the respective tones spectral slice is disconnected It is applied to the frequency spectrum segment used associated with the output subflow in individual frequency spectrum segment, wherein the multiple frequency spectrum segment In the respective tones spectral slice it is disconnected be discontinuous frequency spectrum blocks relative to the multiple frequency spectrum segment and at least through not wrapping Include in the multiple frequency spectrum segment distribute frequency spectrum blocks and with any other frequency spectrum segment in the multiple frequency spectrum segment Separate;
It is at least some in the encryption output subflow;And
The each output subflow of modulation is applied to via defeated corresponding of the respective tones spectral slice stealpass of the first carrier signal with providing Modulated signal.
2. according to the method described in claim 1, wherein the output subflow each encrypted is associated with respective encrypted key.
3. according to the method described in claim 1, wherein at least some and public encryption in the output subflow encrypted Key is associated.
4. according to the method described in claim 1, wherein for encrypting the encryption key of output subflow in each session Change.
5. according to the method described in claim 1, wherein the encrypted packet is included according to via produced by pseudorandom number generator Index value is generated, encryption key is selected from encryption key table.
6. method according to claim 5, wherein, it is updated periodically the encryption key table.
7. according to the method described in claim 1, further comprise, in response to the expired of predetermined time cycle, encryption key The appearance of the threshold number used and the generation of scheduled event it is therein at least one, adjustment output subflow frequency spectrum segment is closed Connection.
8. according to the method described in claim 1, wherein, some in the frequency spectrum segment and described first Jing Guo up-conversion The appropriate section of carrier signal is associated, and some in the frequency spectrum segment and the second carrier signal Jing Guo up-conversion Appropriate section is associated, wherein transmitting the first carrier signal and second carrier wave letter using different point-to-point links Number.
9. a kind of system for being used to provide safety data transmission via spectral slice, including:
Processor;And
Memory, is stored thereon with computer-readable instruction, the computer-readable instruction by computing device when so that it is described System performs operation, and the operation includes:
Data flow is divided into multiple output subflows, the disconnected phase of respective tones spectral slice of each output subflow and first carrier signal Association, and with the data rate compatible with the bandwidth that the respective tones spectral slice is broken, wherein it is many that the respective tones spectral slice is disconnected It is applied to the frequency spectrum segment used associated with the output subflow in individual frequency spectrum segment, wherein the multiple frequency spectrum segment In the respective tones spectral slice it is disconnected be discontinuous frequency spectrum blocks relative to the multiple frequency spectrum segment and at least through not including Distributing frequency spectrum blocks and dividing with any other frequency spectrum segment in the multiple frequency spectrum segment in the multiple frequency spectrum segment Separate;
It is at least some in the encryption output subflow;And
The each output subflow of modulation is applied to via defeated corresponding of the respective tones spectral slice stealpass of the first carrier signal with providing Modulated signal.
10. a kind of equipment for being used to provide safety data transmission via spectral slice, including:
Shunt, for data flow to be divided into multiple output subflows, each the output subflow and the phase of first carrier signal Frequency spectrum segment is answered to be associated, and with the data rate compatible with the bandwidth that the respective tones spectral slice is broken, wherein described corresponding Frequency spectrum segment is to be applied to the frequency spectrum segment used associated with the output subflow in multiple frequency spectrum segments, wherein described It is discontinuous frequency spectrum blocks and at least relative to the multiple frequency spectrum segment that the respective tones spectral slice in multiple frequency spectrum segments is disconnected By and be not included in the multiple frequency spectrum segment distribute frequency spectrum blocks and with the multiple frequency spectrum segment it is any its He separates frequency spectrum segment;
Multiple modulators, each modulator is configured as modulating corresponding output subflow providing suitable for via the first carrier The defeated modulated signal of the respective tones spectral slice stealpass of signal, wherein at least some in the modulator are configured as encryption Corresponding output subflow;
At least one upconverter, for the respective tones spectral slice of the modulated signal up-conversion to first carrier signal to be broken On;
Wherein, it is included in the output subflow in the modulated signal of up-conversion to be suitable to be demodulated at receiver and group Close, thus to recover the data flow.
CN201280023598.5A 2011-03-04 2012-05-16 The system and method that safety data transmission is provided via frequency spectrum segment CN103718583B (en)

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US201161523678P true 2011-08-15 2011-08-15
US61/523,678 2011-08-15
US13/449,170 US9496982B2 (en) 2011-03-04 2012-04-17 System and method providing resilient data transmission via spectral fragments
US13/449,170 2012-04-17
US13/471,504 2012-05-15
US13/471,504 US9030953B2 (en) 2011-03-04 2012-05-15 System and method providing resilient data transmission via spectral fragments
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Families Citing this family (50)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2500356A (en) 2011-01-20 2013-09-18 Box Inc Real time notification of activities that occur in a web-based collaboration environment
US9172678B2 (en) * 2011-06-28 2015-10-27 At&T Intellectual Property I, L.P. Methods and apparatus to improve security of a virtual private mobile network
EP2729877A4 (en) 2011-07-08 2015-06-17 Box Inc Desktop application for access and interaction with workspaces in a cloud-based content management system and synchronization mechanisms thereof
US9465755B2 (en) * 2011-07-18 2016-10-11 Hewlett Packard Enterprise Development Lp Security parameter zeroization
US9098474B2 (en) 2011-10-26 2015-08-04 Box, Inc. Preview pre-generation based on heuristics and algorithmic prediction/assessment of predicted user behavior for enhancement of user experience
WO2013079138A1 (en) * 2011-11-28 2013-06-06 Sony Corporation Transmitter, communications system and method for transmitting data signals
WO2013082320A1 (en) 2011-11-29 2013-06-06 Box, Inc. Mobile platform file and folder selection functionalities for offline access and synchronization
WO2013079122A1 (en) * 2011-12-02 2013-06-06 Nokia Siemens Networks Oy Coordinated spectrum allocation and de-allocation to minimize spectrum fragmentation in a cognitive radio network
US9904435B2 (en) 2012-01-06 2018-02-27 Box, Inc. System and method for actionable event generation for task delegation and management via a discussion forum in a web-based collaboration environment
KR20130086552A (en) * 2012-01-25 2013-08-02 한국전자통신연구원 Method for graceful degradation forward error correction and apparatus for performing the same
US9965745B2 (en) 2012-02-24 2018-05-08 Box, Inc. System and method for promoting enterprise adoption of a web-based collaboration environment
US9575981B2 (en) 2012-04-11 2017-02-21 Box, Inc. Cloud service enabled to handle a set of files depicted to a user as a single file in a native operating system
US9413587B2 (en) 2012-05-02 2016-08-09 Box, Inc. System and method for a third-party application to access content within a cloud-based platform
WO2013166520A1 (en) 2012-05-04 2013-11-07 Box, Inc. Repository redundancy implementation of a system which incrementally updates clients with events that occurred via cloud-enabled platform
US9691051B2 (en) 2012-05-21 2017-06-27 Box, Inc. Security enhancement through application access control
US8914900B2 (en) 2012-05-23 2014-12-16 Box, Inc. Methods, architectures and security mechanisms for a third-party application to access content in a cloud-based platform
GB2505072A (en) 2012-07-06 2014-02-19 Box Inc Identifying users and collaborators as search results in a cloud-based system
US9712510B2 (en) 2012-07-06 2017-07-18 Box, Inc. Systems and methods for securely submitting comments among users via external messaging applications in a cloud-based platform
US9794256B2 (en) 2012-07-30 2017-10-17 Box, Inc. System and method for advanced control tools for administrators in a cloud-based service
US9558202B2 (en) 2012-08-27 2017-01-31 Box, Inc. Server side techniques for reducing database workload in implementing selective subfolder synchronization in a cloud-based environment
US9135462B2 (en) * 2012-08-29 2015-09-15 Box, Inc. Upload and download streaming encryption to/from a cloud-based platform
US9117087B2 (en) 2012-09-06 2015-08-25 Box, Inc. System and method for creating a secure channel for inter-application communication based on intents
US9195519B2 (en) 2012-09-06 2015-11-24 Box, Inc. Disabling the self-referential appearance of a mobile application in an intent via a background registration
US9292833B2 (en) 2012-09-14 2016-03-22 Box, Inc. Batching notifications of activities that occur in a web-based collaboration environment
US9959420B2 (en) 2012-10-02 2018-05-01 Box, Inc. System and method for enhanced security and management mechanisms for enterprise administrators in a cloud-based environment
US9495364B2 (en) 2012-10-04 2016-11-15 Box, Inc. Enhanced quick search features, low-barrier commenting/interactive features in a collaboration platform
US9665349B2 (en) 2012-10-05 2017-05-30 Box, Inc. System and method for generating embeddable widgets which enable access to a cloud-based collaboration platform
US10235383B2 (en) 2012-12-19 2019-03-19 Box, Inc. Method and apparatus for synchronization of items with read-only permissions in a cloud-based environment
US9396245B2 (en) 2013-01-02 2016-07-19 Box, Inc. Race condition handling in a system which incrementally updates clients with events that occurred in a cloud-based collaboration platform
US9953036B2 (en) 2013-01-09 2018-04-24 Box, Inc. File system monitoring in a system which incrementally updates clients with events that occurred in a cloud-based collaboration platform
EP2755151A3 (en) 2013-01-11 2014-09-24 Box, Inc. Functionalities, features and user interface of a synchronization client to a cloud-based environment
US10599671B2 (en) 2013-01-17 2020-03-24 Box, Inc. Conflict resolution, retry condition management, and handling of problem files for the synchronization client to a cloud-based platform
US9633037B2 (en) 2013-06-13 2017-04-25 Box, Inc Systems and methods for synchronization event building and/or collapsing by a synchronization component of a cloud-based platform
US9805050B2 (en) 2013-06-21 2017-10-31 Box, Inc. Maintaining and updating file system shadows on a local device by a synchronization client of a cloud-based platform
US9535924B2 (en) 2013-07-30 2017-01-03 Box, Inc. Scalability improvement in a system which incrementally updates clients with events that occurred in a cloud-based collaboration platform
ITTO20130729A1 (en) * 2013-09-09 2015-03-10 Rai Radiotelevisione Italiana Method and system for satellite transmission of signals and corresponding receiver
US10509527B2 (en) 2013-09-13 2019-12-17 Box, Inc. Systems and methods for configuring event-based automation in cloud-based collaboration platforms
US9535909B2 (en) 2013-09-13 2017-01-03 Box, Inc. Configurable event-based automation architecture for cloud-based collaboration platforms
US9329937B1 (en) * 2013-12-31 2016-05-03 Google Inc. High availability architecture
KR20150129459A (en) * 2014-05-12 2015-11-20 한국전자통신연구원 White-box cryptographic device and method thereof
US10530854B2 (en) 2014-05-30 2020-01-07 Box, Inc. Synchronization of permissioned content in cloud-based environments
US10038731B2 (en) 2014-08-29 2018-07-31 Box, Inc. Managing flow-based interactions with cloud-based shared content
US9894119B2 (en) 2014-08-29 2018-02-13 Box, Inc. Configurable metadata-based automation and content classification architecture for cloud-based collaboration platforms
US20170294981A1 (en) * 2014-09-29 2017-10-12 The Regents Of The University Of California Methods and apparatus for coding for interference network
US20160112276A1 (en) * 2014-10-15 2016-04-21 Infinera Corporation Reconstruction of an optical network link in a link viewer based on a text file
US10021713B1 (en) * 2014-11-06 2018-07-10 Sprint Spectrum L.P. Systems and methods for scheduling wireless transmissions based on service provider
TWI570711B (en) * 2014-12-12 2017-02-11 魏如隆 Dynamic spectrum audio encryption device and method thereof
CN107734682A (en) * 2016-08-12 2018-02-23 中兴通讯股份有限公司 Information transferring method, transmission node and Transmission system
CN106851339A (en) * 2017-01-03 2017-06-13 青岛海信电器股份有限公司 The treating method and apparatus of data encryption, the treating method and apparatus of data deciphering
US10476802B2 (en) * 2017-03-23 2019-11-12 Cisco Technology, Inc. System and method for reactive path selection

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101873588A (en) * 2010-05-27 2010-10-27 大唐微电子技术有限公司 Method and system for realizing service application safety

Family Cites Families (65)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6728467B2 (en) 1992-03-26 2004-04-27 Matsushita Electric Industrial Co., Ltd. Communication system
AU665716B2 (en) 1993-07-05 1996-01-11 Mitsubishi Denki Kabushiki Kaisha A transmitter for encoding error correction codes and a receiver for decoding error correction codes on a transmission frame
JP2595899B2 (en) 1994-05-17 1997-04-02 日本電気株式会社 Online message encryption device
JP3614907B2 (en) 1994-12-28 2005-01-26 株式会社東芝 Data retransmission control method and data retransmission control system
US6138147A (en) 1995-07-14 2000-10-24 Oracle Corporation Method and apparatus for implementing seamless playback of continuous media feeds
JPH0973565A (en) 1995-09-05 1997-03-18 Fujitsu Ltd Enciphered information transmission and reception system in automatic toll collecting system for toll road
WO1997035393A1 (en) 1996-03-15 1997-09-25 Hitachi, Ltd. Data separating device
JP3700799B2 (en) 1996-08-23 2005-09-28 日本信販株式会社 Confidential information communication system
US5970386A (en) 1997-01-27 1999-10-19 Hughes Electronics Corporation Transmodulated broadcast delivery system for use in multiple dwelling units
US6173429B1 (en) 1997-03-14 2001-01-09 Harris Corporation Apparatus for providing error correction data in a digital data transfer system
US6711121B1 (en) * 1998-10-09 2004-03-23 At&T Corp. Orthogonal code division multiplexing for twisted pair channels
US7272319B1 (en) * 1999-03-04 2007-09-18 Lucent Technologies Inc. System and method for secure multiple wavelength communication on optical fibers
US6477182B2 (en) * 1999-06-08 2002-11-05 Diva Systems Corporation Data transmission method and apparatus
US7099578B1 (en) 1999-12-16 2006-08-29 Tellabs Operations Inc. 1:N protection in an optical terminal
EP2271043A3 (en) 2000-07-12 2011-03-23 Qualcomm Incorporated Method and apparatus for providing channel state information in a MIMO system
US6598200B1 (en) 2000-06-02 2003-07-22 Nortel Networks Limited Method and apparatus for frequency domain data frame transmission
US6771706B2 (en) 2001-03-23 2004-08-03 Qualcomm Incorporated Method and apparatus for utilizing channel state information in a wireless communication system
US7688899B2 (en) 2001-05-17 2010-03-30 Qualcomm Incorporated Method and apparatus for processing data for transmission in a multi-channel communication system using selective channel inversion
US7116652B2 (en) 2001-10-18 2006-10-03 Lucent Technologies Inc. Rate control technique for layered architectures with multiple transmit and receive antennas
US7085306B1 (en) 2001-10-30 2006-08-01 3Com Corporation System and method for a multi-frequency upstream channel in a computer network
US8045935B2 (en) 2001-12-06 2011-10-25 Pulse-Link, Inc. High data rate transmitter and receiver
JP2003198416A (en) 2001-12-27 2003-07-11 Sony Corp Communication system, communication equipment, communication method, program and recording medium therefor
US6842446B2 (en) * 2002-04-19 2005-01-11 Sprint Communications Company L.P. Method and system for increasing data rate in wireless communications through aggregation of data sessions
JP2004056569A (en) 2002-07-22 2004-02-19 Matsushita Electric Ind Co Ltd Parallel transmitting device and method for determining transmission rate
US7515605B2 (en) 2003-03-24 2009-04-07 Corrigent Systems Ltd Efficient transport of TDM services over packet networks
JP4623992B2 (en) 2003-04-18 2011-02-02 パナソニック株式会社 Transmitter and receiver
US20040240415A1 (en) 2003-06-02 2004-12-02 Richard Lane Base station-centric method for managing bandwidth and QoS in error-prone system
US7286609B2 (en) 2003-08-08 2007-10-23 Intel Corporation Adaptive multicarrier wireless communication system, apparatus and associated methods
JP4496836B2 (en) 2004-04-23 2010-07-07 ブラザー工業株式会社 Wireless receiver
EP1757006A2 (en) * 2004-06-01 2007-02-28 Ben-Gurion University of the Negev Research and Development Authority Structure preserving database encryption method and system
US7499393B2 (en) 2004-08-11 2009-03-03 Interdigital Technology Corporation Per stream rate control (PSRC) for improving system efficiency in OFDM-MIMO communication systems
US7623594B2 (en) 2005-02-28 2009-11-24 Delphi Technologies, Inc. Satellite receiver system
EP1869845A1 (en) 2005-04-07 2007-12-26 Philips Electronics N.V. Network-on-chip environment and method for reduction of latency
US7577881B1 (en) 2005-05-10 2009-08-18 Ikanos Communications Inc. Method and apparatus for an interleaver
JP4503613B2 (en) 2005-09-01 2010-07-14 日本電信電話株式会社 Error correction method and apparatus
US7751372B2 (en) 2005-09-23 2010-07-06 Peter Monsen Technique for adaptive data rate communication over fading dispersive channels
BRPI0713707A2 (en) 2006-06-21 2012-10-30 Qualcomm Inc Wireless Resource Allocation Methods and Appliance
US7668081B2 (en) 2006-11-10 2010-02-23 Alcatel-Lucent Usa Inc. Preemptive transmission protection scheme for data services with high resilience demand
US7876786B2 (en) * 2006-12-01 2011-01-25 Microsoft Corporation Dynamic time-spectrum block allocation for cognitive radio networks
CN100586193C (en) 2006-12-12 2010-01-27 华为技术有限公司 Method for shielding error code and system
EP1971095A1 (en) * 2007-03-15 2008-09-17 Nokia Siemens Networks Gmbh & Co. Kg Method for optimizing signals with multiple subcarriers
KR100930518B1 (en) 2007-03-21 2009-12-09 삼성전자주식회사 Apparatus and method for obtaining IP address of a terminal using multiple FM in broadband wireless communication system
US7724676B2 (en) 2007-03-21 2010-05-25 Cisco Technology, Inc. Proactive protection mechanism based on advanced failure warning
US7895341B2 (en) 2007-04-11 2011-02-22 The Directv Group, Inc. Method and apparatus for file sharing between a group of user devices with separately sent crucial portions and non-crucial portions
US8374224B2 (en) 2007-05-24 2013-02-12 Lantiq Deutschland Gmbh Interleaver apparatus and method
EP2186243A2 (en) 2007-08-30 2010-05-19 Thomson Licensing Methods and systems for providing different data loss protection
JP2009088641A (en) * 2007-09-27 2009-04-23 Kyocera Corp Transmission reception method, communication system and transmitter
US8351464B2 (en) 2007-10-02 2013-01-08 Infineon Technologies Ag Retransmission in data communication systems
KR100961443B1 (en) 2007-12-19 2010-06-09 한국전자통신연구원 Hierarchical transmitting/receiving apparatus and method for improving availability of broadcasting service
US8175043B2 (en) * 2007-12-20 2012-05-08 Verizon Patent And Licensing Inc. Method and system for establishing disparate connection paths from a mobile user device to a base station through a mobile peer-to-peer (PTP) network
WO2009105281A2 (en) 2008-02-22 2009-08-27 Opvista Incorporated Spectrally efficient parallel optical wdm channels for long-haul man and wan optical networks
US8085667B2 (en) 2008-05-15 2011-12-27 Panasonic Corporation Wireless relay apparatus and wireless relay method
US8345798B2 (en) 2008-05-21 2013-01-01 Entropic Communications, Inc. Channel stacking system and method of operation
CN101686464B (en) * 2008-09-26 2013-10-09 电信科学技术研究院 Method and device for configuring carrier waves
US8488691B2 (en) 2008-10-08 2013-07-16 Qualcomm Incorporated Adaptive loading for orthogonal frequency division multiplex (OFDM) communication systems
US9008314B2 (en) * 2008-11-18 2015-04-14 Verizon Patent And Licensing Inc. Secure wireless communications
US8194858B2 (en) 2009-02-19 2012-06-05 Physical Optics Corporation Chaotic cipher system and method for secure communication
EP2264931B1 (en) 2009-06-15 2015-11-25 Alcatel Lucent Improved forward error correction with bit-wise interleaving
WO2011009157A1 (en) * 2009-07-20 2011-01-27 Commonwealth Scientific And Industrial Research Organisation Wireless data communications
EP2481180B1 (en) 2009-09-25 2018-11-07 BlackBerry Limited Channel scrambling in multi-carrier communications networks
FR2951896A1 (en) * 2009-10-23 2011-04-29 France Telecom Data sub-flow encapsulation method, desencapsulation method and corresponding computer programs
JP5402581B2 (en) 2009-12-01 2014-01-29 富士通株式会社 Packet relay apparatus and congestion control method
GB2478122B (en) 2010-02-24 2012-11-07 Ipwireless Inc Apparatus and methods for broadcast-unicast communication handover
US9100959B2 (en) * 2010-07-08 2015-08-04 Nokia Solutions And Networks Oy Carrier selection
US20120163178A1 (en) * 2010-12-23 2012-06-28 Telefonaktiebolaget L M Ericsson (Publ) Multiple-Algorithm Congestion Management

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101873588A (en) * 2010-05-27 2010-10-27 大唐微电子技术有限公司 Method and system for realizing service application safety

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